North American Rhynchopliora. 295 



drical, distinctly wider than long; sides rather strongly and evenly 

 arcuate in the middle, sinuate near base and apex; the latter equal, apex 

 subtruncate, base feebly arcuate; disk convex, rather coarsely, very 

 deeply and densely punctate; punctures partially concealed, dark setae 

 fine, rather long and abundant. Elytra oblong, nearly twice as long as 

 wide, four-fifths wider than the prothorax; sides nearly parallel and 

 straight, acutely rounded behind from apical third; disk finely, feebly 

 striate; striae finely, rather closely and not distinctly punctate; intervals 

 subequal, nearly flat; dark setae rather long and fine, abundant; pale 

 setae very sparse, about one-half longer than the dark ones. Length 

 6.3 mm. 



Arizona and Southern California 2. Mr. G. W. Dunn. 



This species is the largest of the present group; the locality is 

 subject to a little doubt, as both specimens may be from either 

 Southern California or Arizona. 



S. §parsiis n. sp. — Form slender, convex, piceous; scales very small, 

 elongate-oval, evenly and very sparsely distributed over the surface of 

 the elytra, always separated by at least their own dimensions, very 

 sparse on the prothorax, except in a small median basal spot where they 

 are dense; throughout they are of the same color as the body and are ex- 

 tremely inconspicuous, very sparse on the abdomen; the latter more 

 densely setose. Head conical, very slightly wider than long; front flat, 

 slightly depressed below the inner margins of the eyes, not sulcate, but 

 having a deep elongate median fovea just behind the middle of the eyes; 

 the latter large and very feebly convex; entire surface of head and beak 

 extremely densely, rather finely and very deeply punctate, sparsely 

 squamose, and more densely setose; setae short and rather robust; beak 

 slightly wider than long, broadly, roundly, and very feebly impressed 

 throughout its width, finely subcarinate at the sides, not at all im- 

 pressed near the apex, the median carina entirely obsolete; antennae 

 rather short; basal joint of funicle more robust, nearly as long as the 

 next two together, second longer than wide and slightly longer than 

 the third. Prothorax cylindrical, very slightly wider than long; sides 

 evenly and distinctly arcuate, feebly constricted near the apex; base 

 and apex equal, very feebly arcuate; disk coarsely, deeply, and densely 

 punctate; scales extremely sparse, except along the middle, where they 

 are more numerous; setae short, robust, rather numerous. Elytra about 

 twice as long as wide, scarcely more than one-third wider than the pro- 

 thorax; sides parallel and straight in basal two-thirds; disk convex, 

 rather coarsely but feebly striate; striae with rather coarse, very deep, 

 and somewhat approximate punctures, distinctly more feeble toward 

 apex; intervals slightly unequal, not distinctly convex; dark setae short, 

 robust and rather sparse; pale setae very sparse, short and robust, 

 about twice as long as the darker. Abdomen rather distinctly and 



